PokerTracker

with the beta release 4 I was asked to create a new data base, which i did. whenever i reopen PT3 it jumps back to the initial database and i have to select the new database manually

In the Database Management window, click on the new database, then click the "Set Default" button. It will then open that database instead when it starts up.

yep, got it. I used to change Database through Database -> Set Active Database